US Bridges

Csah 34 over Tamarac River

Good

Marshall County, Minnesota · 1.0 MI N of JCT Csah 30 · Structure no. 45563

Built
2001
24 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
150
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 34 over Tamarac River is a concrete continuous slab carrying Csah 34 over Tamarac River in Marshall County, Minnesota. It was built in 2001, so it is 24 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, projected to reach 115 by 2038. The structure is 103 ft (31.5 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 34
CrossesTamarac River
Location1.0 MI N of JCT Csah 30
RouteCounty Highway 34
Coordinates48.41336, -96.71494
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating54.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length103 ft (31.5 m)
Longest span39 ft (11.9 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2018)
Projected traffic115 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 34 over Tamarac River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Csah 34 over Tamarac River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Csah 34 over Tamarac River carry?

About 150 vehicles per day (2018 count).

How long is Csah 34 over Tamarac River?

The structure is 103 ft (31.5 m) long with a longest span of 39 ft (11.9 m) and a deck 39 ft wide.

Who owns Csah 34 over Tamarac River?

It is owned by the County Highway Agency.